Fun place to take toddlers?

Cheyanne

I’m trying to make plans to take my best friend and her 2 kids to do something fun but I’m not sure what to do that would be age appropriate. They are 1.5 and 2.5 year old boys and we live in Missouri so it’s cold outside. Any ideas would be greatly appreciated! If youre in the Kansas City or St. Louis areas let me know more specific places. We live about the same distance between both cities and could make a trip to either. Thanks!